Promathia Mission 4-3

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The Secrets of Worship
Series Chains of Promathia Missions
Start After The Savage 
Level Restriction: Level 50 Cap 
Items Needed Coral Crest KeyRareExclusive
Sealion Crest KeyRareExclusive
or Key ItemTemple Knight Key
and Key ItemReliquiarium Key
Title The Lost One
Repeatable No 
Description Now that you have learned the Wyrmking's plan, you must travel to the fourth mothercrystal. Nag'molada has informed you where the stone lies. However, you will need the amulet you lent to Prishe before you are to make your way there.
Rewards
Access to Sacrarium (Given at the start of the quest after interacting with the Walnut Door)
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The Savage Slanderous Utterings


Overview

This mission takes place in Sacrarium (50 cap area). You have to get access to and interact with a door to view a cutscene and then proceed to fight the Ghost NM Old Professor Mariselle before returning to the door for a final cutscene. Access to said door requires farming a set of keys from monsters in Sacrarium.

Walkthrough

Preparation

Before starting the mission, consider your options:

Mission Start

  • Upon entering Sacrarium, proceed to (J-10) (Connection 'B').
    • Note that the maze walls will shift with each Vana'diel day (see 'Sacrarium Map 1' below).
  • Entering Map 2 through Connection 'B', you arrive at (E-9).
Sacrarium Map 1 (hover for larger size)
Sacrarium Map 2 (hover for larger size)


Farming the Keys

Note: This part of the mission can be skipped if someone has a Key ItemTemple Knight Key in their possession.

Mission Continues

  • With either a Key ItemTemple Knight Key OR the Coral Crest Keys and a Sealion Crest Key head to Sacrarium, Map 2 (H-7) in the Sacrarium and look for a door with two keyholes: one LARGE and one SMALL.
  • Opening the door: The first party member will trade the Coral Crest Key to the SMALL HOLE; you will hear a click.
    The other party member will trade the Sealion Crest Key to the large hole; the door will then open. **You have a limited amount of time to trade the Sealion Crest Key after the Coral Crest Key has been traded, so make sure the key holders are both ready. (Both locks cannot be opened by a single person!)
  • Find and click on the Wooden Gate at (G-8) for a cutscene (This is necessary to be able to proceed with the mission).
  • Head back out the locked door.
    • If you do not have another Coral Crest Key, you can leave a member behind to open the door with the switch but they cannot participate in the NM fight.
  • You are looking to spawn and defeat the NM Old Professor Mariselle. They are located in either of the six classrooms: three on the north side at (F-5 / G-5 / H-5) and three on the south side at (F-11 / G-11 / H-11). Each classroom has a ??? in it. Check each ??? until you spawn the Ghost NM Old Professor Mariselle and his two Mariselle's Pupils.
    • Old Professor Mariselle teleports, casts Sleepga II and Silence, and uses Ghost abilities. It seems to have a fair bit of regen, so continuing to keep damage on after it teleports is important.
    • Don’t use AoE abilities or you risk aggroing the Fomor.
    • The Mariselle's Pupils are weak, but if you kill them Old Professor Mariselle will summon more. They CANNOT be slept.
    • Highly recommend clearing the Fomor out of each room before clicking the ???, as the Fomor will Blood aggro, chain link, and probably wipe your group. Additionally, Mariselle warps, so melee players will only have a couple safe places in the room to stand if Fomor are still alive. This strat may take quite a bit of time to check all 6 rooms, but wiping will also take ages.
  • Kill Old Professor Mariselle and check the ??? again for the Reliquiarium Key. Any ??? in any of the rooms will allow you to obtain the Key ItemReliquiarium Key.
  • Proceed back to the locked door and open it with your second Coral Crest Key and the Sealion Crest Key, using the same method as before. Alternatively, have someone operate the switch on the other side.
  • Behind the locked door, head to the Wooden Gate again for a final cutscene and to end the mission.